CN207703850U - A kind of tight sandstone reservoir guanidine gum fracturing fluid absorption damage experiment evaluating apparatus - Google Patents
A kind of tight sandstone reservoir guanidine gum fracturing fluid absorption damage experiment evaluating apparatus Download PDFInfo
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- CN207703850U CN207703850U CN201820047959.4U CN201820047959U CN207703850U CN 207703850 U CN207703850 U CN 207703850U CN 201820047959 U CN201820047959 U CN 201820047959U CN 207703850 U CN207703850 U CN 207703850U
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Abstract
The utility model is related to a kind of tight sandstone reservoir guanidine gum fracturing fluids to adsorb damage experiment evaluating apparatus, device includes water tank, constant-flux pump oral siphon line, constant-flux pump, the advection water pump outlet pipe line of two bifurcations of rear end band, clear water intermediate receptacle front end valve, fracturing fluid intermediate receptacle front end valve, clear water intermediate receptacle, fracturing fluid intermediate receptacle, the fill out sand tube suction line of two bifurcations of front end band, change-over valve, fill out sand tube entrance face pipeloop with valve, fill out sand tube, differential pressure indicator, fill out sand tube outlet line, fill out sand tube outlet valve, ultraviolet spectrometer, nitrogen cylinder, nitrogen pressure table, nitrogen cylinder with valve exports end pipe.The tight sandstone reservoir guanidine gum fracturing fluid adsorb damage experiment evaluating apparatus clever structure, it is easily operated, can effective solution tight sand rock core displacement it is obstructed, it is difficult to study the process of absorption injury, with stronger reducing power, experimental reliability is higher, has larger practicability.
Description
Technical field
The utility model is related to a kind of tight sandstone reservoir guanidine gum fracturing fluids to adsorb damage experiment evaluating apparatus, belong to oil gas field
Lab-evaluation experimental facilities in exploitation.
Background technology
As petrol resources exploitation constantly promotes, tight sandstone reservoir starts to be increasingly becoming Exploration of Oil And Gas and exploitation
Important object.Hydraulic fracturing technology is the important measures of tight sandstone reservoir storey increase design, and fracturing fluid is the pass in fracturing process
Key technology link.A kind of ideal fracturing fluid system should be that pressing crack construction process medium viscosity is high, compatibility is good, leak-off is few, rubs
Hinder that low, residue is few, thermal stability and anti-shear stability are good, it is most important that after pressure break can with rapid break, the rapid row of returning,
And do not generate absorption on rock, it is injured caused by reservoir as low as possible.However, some researches show that guanidine gum fracturing fluids pair
Rock core matrix damage is broadly divided into water phase injury and the injury of guanidine glue Adsorption And Retention, and wherein guanidine glue Adsorption And Retention injury accounting is up to
43.6%.Guanidine glue is adsorbed on blowhole surface, and pore throat radius is caused to reduce, and permeability reduction limits gas well deliverability.It causes
Close sandstone reservoir can not effectively drive logical rock core due to rock core densification, traditional displacement, it is seen that a set of rational tight sand storage of design
Layer guanidine gum fracturing fluid absorption damage experiment evaluating apparatus is particularly important the Efficient Development of tight sandstone reservoir.
Invention content
The purpose of this utility model is：A kind of tight sandstone reservoir guanidine gum fracturing fluid absorption damage experiment evaluation dress is provided
It sets.
In order to achieve the above object, the technical solution adopted in the utility model is：A kind of tight sandstone reservoir guanidine glue laminated is split
Liquid adsorbs damage experiment evaluating apparatus, device include water tank, constant-flux pump oral siphon line, constant-flux pump, two bifurcations of rear end band it is flat
Flow water pump outlet pipe line, clear water intermediate receptacle front end valve, fracturing fluid intermediate receptacle front end valve, clear water intermediate receptacle, fracturing fluid
Intermediate receptacle, the fill out sand tube suction line of two bifurcations of front end band, change-over valve, the fill out sand tube entrance face circulation pipe with valve
Line, fill out sand tube, differential pressure indicator, fill out sand tube outlet line, fill out sand tube outlet valve, ultraviolet spectrometer, nitrogen cylinder, nitrogen pressure
Table, the nitrogen cylinder outlet end pipeline with valve；It is characterized in that：Water tank is connected by constant-flux pump oral siphon line with constant-flux pump,
Constant-flux pump is connected with clear water intermediate receptacle and fracturing fluid intermediate receptacle respectively by the advection water pump outlet pipe line of two bifurcations of rear end band
It connects, clear water intermediate receptacle front end valve and fracturing fluid intermediate receptacle front end valve are pumped out in the advection of two bifurcations of rear end band respectively
In the correspondence Liang Ge branches of water pipeline, fill out sand tube that clear water intermediate receptacle and fracturing fluid intermediate receptacle pass through two bifurcations of front end band
Suction line is connected with fill out sand tube, and change-over valve is at the bifurcations of the fill out sand tube suction line of two bifurcations of front end band, band
The fill out sand tube entrance face pipeloop of valve is connect with fill out sand tube front end, and differential pressure indicator is connected to fill out sand tube both sides, and fill out sand tube is logical
Fill out sand tube outlet line is crossed to connect with ultraviolet spectrometer, fill out sand tube outlet valve on fill out sand tube outlet line, nitrogen cylinder with
Nitrogen pressure table connects, and pressure gauge is connect by the nitrogen cylinder outlet end pipeline with valve with back-up sand pipe end.
The utility model has the advantages that：(1) device is simple, clever structure, easy to operate；(2) experimental provision
Novelty, reliable experiment result degree are high；(3) it is logical to solve the problems, such as that tight sandstone reservoir routine displacement test can not drive.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
Below in conjunction with the accompanying drawings, the utility model is described in detail.
As shown in Figure 1, in order to achieve the above object, the utility model uses following technical scheme：Device include water tank 1,
Constant-flux pump oral siphon line 2, constant-flux pump 3, the advection water pump outlet pipe line 4 of two bifurcations of rear end band, clear water intermediate receptacle front end valve
5, the back-up sand of fracturing fluid intermediate receptacle front end valve 6, clear water intermediate receptacle 7, fracturing fluid intermediate receptacle 8, two bifurcations of front end band
Tube inlet pipeline 9, the fill out sand tube entrance face pipeloop 11 with valve, fill out sand tube 12, differential pressure indicator 13, is filled out change-over valve 10
Sandpipe outlet line 14, fill out sand tube outlet valve 15, ultraviolet spectrometer 16, nitrogen cylinder 17, nitrogen pressure table 18, band valve
Nitrogen cylinder outlet end pipeline 19；It is characterized in that：Water tank 1 is connected by constant-flux pump oral siphon line 2 with constant-flux pump 3, advection
Pump 3 is connected with clear water intermediate receptacle 7 and fracturing fluid intermediate receptacle 8 respectively by the advection water pump outlet pipe line 4 of two bifurcations of rear end band
It connects, clear water intermediate receptacle front end valve 5 and fracturing fluid intermediate receptacle front end valve 6 are respectively in the constant-flux pump of two bifurcations of rear end band
It is discharged in the correspondence Liang Ge branches of pipeline 4, clear water intermediate receptacle 7 and fracturing fluid intermediate receptacle 8 pass through two bifurcations of front end band
Fill out sand tube suction line 9 is connected with fill out sand tube 12, fill out sand tube suction line 9 of the change-over valve 10 in front end band two bifurcations
At bifurcations, the fill out sand tube entrance face pipeloop 11 with valve is connect with 12 front end of fill out sand tube, and differential pressure indicator 13, which is connected to, to be filled out
12 both sides of sandpipe, fill out sand tube 12 are connect by fill out sand tube outlet line 14 with ultraviolet spectrometer 16, fill out sand tube outlet valve 15
On fill out sand tube outlet line 14, nitrogen cylinder 17 is connect with nitrogen pressure table 18, and pressure gauge 18 passes through the nitrogen cylinder with valve
Outlet end pipeline 19 is connect with 12 end of fill out sand tube.
The water tank 1 is used to provide the clear water of pumpable note for constant-flux pump 3.
The constant-flux pump oral siphon line 2 connects water source for connecting water tank 1 and constant-flux pump 3, for constant-flux pump 3.
The constant-flux pump 3 is used to provide constant fluid flow input for whole device, drives a whole set of experimental provision mould
Draft experiment process.
The advection water pump outlet pipe line 4 of two bifurcations of rear end band is for constant-flux pump 3 to be pumped into inside experimental provision
Clear water introduces clear water respectively by the switch combination of clear water intermediate receptacle front end valve 5 and fracturing fluid intermediate receptacle front end valve 6
Intermediate receptacle 7 and fracturing fluid intermediate receptacle 8 drive the pressure break in the clear water and fracturing fluid intermediate receptacle 8 in clear water intermediate receptacle 7
Liquid is flowed out with more stable speed or discharge capacity, provides constant flow.
The fill out sand tube suction line 9 of two bifurcations of front end band is controlled clearly by the change-over valve 10 at its bifurcations
Liquid in water intermediate receptacle 7 and fracturing fluid intermediate receptacle 8 flows to fill out sand tube 12, realizes the tight sand to being filled in fill out sand tube
The displacement of rock powder.
The fill out sand tube entrance face pipeloop 11 with valve, is filled out for judging whether entire experimental liquid reaches
12 front end of sandpipe, auxiliary judgment injection rate, while being replaced for follow-up reversed nitrogen flooding and exit passageway is provided.
The fill out sand tube 12 is used to fill by the 100 mesh rock powder that get of tight sandstone reservoir rock core grinding, when clear water from
Fill out sand tube 12 is flowed into through change-over valve 10 in clear water intermediate receptacle 7, liquid can be carried out to 12 inside filling of fill out sand tube and survey permeability
Characterization was injured when fracturing fluid can simulate fracturing fluid from fracturing fluid intermediate receptacle 8 through the inflow fill out sand tube 12 of change-over valve 10
Journey.
The pressure gauge 13 is used to measure the pressure difference of 12 both sides of fill out sand tube, and the calculating of permeability is surveyed for liquid.
The ultraviolet spectrometer 16 is used to test to flow out through fill out sand tube outlet line 14 and fill out sand tube outlet valve 15
The variation of fracturing fluid light splitting degree obtains the consecutive variations rule of fracturing fluid gelatinizer concentration at any time.
The nitrogen cylinder 17 leads to for providing stable air source, nitrogen pressure table 18 for controlling nitrogen output pressure
It crosses the nitrogen cylinder outlet end pipeline 19 with valve to connect with 12 end of fill out sand tube, reverse displacement gas, simulates fracturing fluid recovery (backflow) mistake
Journey.
The tight sandstone reservoir guanidine gum fracturing fluid absorption damage experiment evaluating apparatus operating method be：First in water tank 1
The clear water of the middle enough volumes of injection, enough clear water and pressure are injected separately into clear water intermediate receptacle 7 and fracturing fluid intermediate receptacle 8
Liquid is split, the tight sand rock powder of 100 mesh is filled up in fill out sand tube 12, is first turned on clear water intermediate receptacle front end valve 5, closes pressure
It splits liquid intermediate receptacle front end valve 6, change-over valve 10 is connected into clear water intermediate receptacle 7 and fill out sand tube 12, close filling out with valve
Sandpipe entrance face pipeloop 11 opens fill out sand tube outlet valve 15 and ultraviolet spectrometer 16, closes the nitrogen with valve
Bottle outlet end pipeline 19；Then constant-flux pump 3, the first clear water in displacement clear water intermediate receptacle 7,12 both ends of record fill out sand tube are opened
Pressure, obtain the variation of permeability, after displacement enough time, close clear water intermediate receptacle front end valve 5, open in fracturing fluid
Between container front end valve 6, change-over valve 10 connected into fracturing fluid intermediate receptacle 8 and fill out sand tube 12, start fracturing fluid damage experiment
And the pressure at 12 both ends of fill out sand tube is recorded, the variation of permeability is obtained, is analyzed in different time using ultraviolet spectrometer 16 through filling out
The fracturing fluid light splitting degree that sandpipe outlet line 14 flows out obtains variation of the fracturing fluid gelatinizer in different time.After a period of time,
Constant-flux pump 3 and change-over valve 10 are closed, the fill out sand tube entrance face pipeloop 11 with valve is opened, closes fill out sand tube outlet end
Valve 15 opens the nitrogen cylinder outlet end pipeline 19 with valve, and reverse displacement nitrogen is simulated returning for fracturing fluid and is drained through for a period of time
Journey.Finally equipment is restored, the tight sand rock powder in fill out sand tube 12 is taken out, for obtaining other call parameters, comprehensive analysis
Permeability variation, displacement go out data and other call parameters such as the variation of fracturing fluid concentration, and comprehensive analysis fracturing fluid is in tight sand
In absorption injury.
The tight sandstone reservoir guanidine gum fracturing fluid adsorbs damage experiment evaluating apparatus clever structure, easily operated, Neng Gouyou
The solution tight sand rock core displacement of effect is obstructed, it is difficult to which the process of research absorption injury has stronger reducing power, experiment can
It is higher by property, there is larger practicability.
Claims (1)
1. a kind of tight sandstone reservoir guanidine gum fracturing fluid adsorbs damage experiment evaluating apparatus, device includes that water tank (1), advection are pumped into
Water pipeline (2), constant-flux pump (3), the advection water pump outlet pipe line (4) of two bifurcations of rear end band, clear water intermediate receptacle front end valve
(5), fracturing fluid intermediate receptacle front end valve (6), clear water intermediate receptacle (7), fracturing fluid intermediate receptacle (8), two branch of front end band
Fill out sand tube suction line (9), change-over valve (10), fill out sand tube entrance face pipeloop (11), the fill out sand tube with valve of mouth
(12), differential pressure indicator (13), fill out sand tube outlet line (14), fill out sand tube outlet valve (15), ultraviolet spectrometer (16), nitrogen cylinder
(17), nitrogen pressure table (18), the nitrogen cylinder outlet end pipeline (19) with valve；It is characterized in that：Water tank (1) passes through advection
It is pumped into water pipeline (2) with constant-flux pump (3) to be connected, the advection water pump outlet pipe line (4) that constant-flux pump (3) passes through two bifurcations of rear end band
It is connect respectively with clear water intermediate receptacle (7) and fracturing fluid intermediate receptacle (8), clear water intermediate receptacle front end valve (5) and fracturing fluid
Intermediate receptacle front end valve (6) is respectively in the correspondence Liang Ge branches of the advection water pump outlet pipe line (4) of two bifurcations of rear end band, clearly
The fill out sand tube suction line (9) and fill out sand tube that water intermediate receptacle (7) and fracturing fluid intermediate receptacle (8) pass through two bifurcations of front end band
(12) it is connected, change-over valve (10) is at the bifurcations of the fill out sand tube suction line (9) of two bifurcations of front end band, with valve
Fill out sand tube entrance face pipeloop (11) is connect with fill out sand tube (12) front end, and differential pressure indicator (13) is connected to fill out sand tube (12) two
Side, fill out sand tube (12) are connect by fill out sand tube outlet line (14) with ultraviolet spectrometer (16), fill out sand tube outlet valve (15)
On fill out sand tube outlet line (14), nitrogen cylinder (17) is connect with nitrogen pressure table (18), and pressure gauge (18) passes through band valve
Nitrogen cylinder outlet end pipeline (19) connect with fill out sand tube (12) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820047959.4U CN207703850U (en) | 2018-01-12 | 2018-01-12 | A kind of tight sandstone reservoir guanidine gum fracturing fluid absorption damage experiment evaluating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820047959.4U CN207703850U (en) | 2018-01-12 | 2018-01-12 | A kind of tight sandstone reservoir guanidine gum fracturing fluid absorption damage experiment evaluating apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109828096A (en) * | 2019-03-20 | 2019-05-31 | 中国矿业大学 | A kind of coal seam reservoirs fracturing fluid is detained self-priming detection device and method |
| CN111350482A (en) * | 2020-04-22 | 2020-06-30 | 中国石油大学(华东) | Experimental device and method for repairing reservoir guar gum fracturing damage by microorganisms |
| CN114814159A (en) * | 2021-01-28 | 2022-07-29 | 中国石油天然气股份有限公司 | Detection device and method for core damage rate |
| CN115420820A (en) * | 2022-08-22 | 2022-12-02 | 长江大学 | Displacement simulation method and device for migration tracing parameters of carbazole compounds in crude oil |
-
2018
- 2018-01-12 CN CN201820047959.4U patent/CN207703850U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109828096A (en) * | 2019-03-20 | 2019-05-31 | 中国矿业大学 | A kind of coal seam reservoirs fracturing fluid is detained self-priming detection device and method |
| CN111350482A (en) * | 2020-04-22 | 2020-06-30 | 中国石油大学(华东) | Experimental device and method for repairing reservoir guar gum fracturing damage by microorganisms |
| CN111350482B (en) * | 2020-04-22 | 2022-04-01 | 中国石油大学(华东) | Experimental device and method for repairing reservoir guar gum fracturing damage by microorganisms |
| CN114814159A (en) * | 2021-01-28 | 2022-07-29 | 中国石油天然气股份有限公司 | Detection device and method for core damage rate |
| CN115420820A (en) * | 2022-08-22 | 2022-12-02 | 长江大学 | Displacement simulation method and device for migration tracing parameters of carbazole compounds in crude oil |
| CN115420820B (en) * | 2022-08-22 | 2023-08-04 | 长江大学 | Displacement simulation method and device for carbazole compound migration tracing parameters in crude oil |
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